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#1
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Water Pump 99 E320
Good Day: After replacing one idler pully, I am pretty sure my engine noise is now the water pump bearing. There is a little play in the shaft. The Parts Store shows three brands as replacement parts. They are Laso, Graf, and Hepo. Is one better than the other?
Also, it appears if I get the correct sockets the repair should be pretty straight forward. Any tricks, I should know about? Thank you in advance for your advice! GW |
#2
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The "Graf" pump is the best of the 3 listed.
You need a special wrench to counterhold the fan clutch nut.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#3
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Thank you for the advice. This unit does not have a mechanical fan, only electric. The water pump shaft is threaded but there is nothing there. Anything else I should know?
GW |
#4
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I am not sure about the E320 engine, but on the e300D engine I had to remove the timing mark. It might be worth a subscription to alldatadiy.com for an exploded parts description.
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Dennis 2006 E320 CDI Black/Black Leather. Nav, HTD Seats HK stereo 32000 miles. 2000 VW Passat 1.8t 300,000 miles as of Dec 09, 2009 original owner 1997 E300d Silver 300,000 miles As of Jan 05, 2010 3rd owner SOLD |
#5
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Drop the belt and run the COLD engine for 30 secs to see if the noise disappears in order to confirm its an accessory device.
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
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